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This allows me to expedite the correct parts to you. All sizes and measurments are stated below in the measurment chart. This is for the large bore engine and the cylinder sizes are listed below. Please see the bore sizes in the chart below. This is for all the large bore K161 engines including K161A, K161AS, K161AQS or any k161 with any suffix on it. Please note the cylinder chart below, kohler made the early small bore and the later large bore. If you have the small bore, they do not make that piston any longer. The K161 rod is 4 1/4 inches (crank pin to wrist pin) center to center and about 7 7/8 in long. The K181 rod is 4 inches (crank pin to wrist pin) center to center and about 7 1/2 in long. If you have the longer rod, you have a K161, if you have the shorter rod you have a 8hp K181. Numbers or models stamped on the shroud or block mean nothing, engine is determined by the bore and stroke and I clearly give you all the measurements above and below to defiantly tell you what you have. Kit includes : EVERYTHING TO MAKE YOUR K161 7hp ENGINE LIKE NEW AGAIN. KIT INCLUDES TH E FOLLOWING. 1- New Piston : PISTON COMES IN : Standard. Top ring, middle ring and the one piece oil ring. Wrist pin and Keepers. CONNECTING ROD COMES IN : Standard or. Anybody can Rebuild a Kohler engine themselves. Piston and Rings When measuring cylinder bore, please measure the cylinder wall approx. 1 inch down the cylinder wall for correct measurement. The machine shop must have the piston before they can bore the cylinder to match the cylinder bore to the piston. If they try and bore the block without having the piston, go to a different machine shop! 010 2.9475 +. 020 2.9575 +. Rod crank pin, Std is 1.186. I now have the rod in. (MOST COMMON FAILURE ON A NEW REBUILT ENGINE IS IMPROPER ROD INSTALLATION), (The oil hole goes toward the cam). See my other auctions for tools, lawn, tractor seats and other rebuild kits. PLEASE FEEL FREE TO VIEW OUR FEEDBACKS. The item “7hp K161 Kohler engine rebuild. Std, 010, 020 or 030 piston and std rod or. 010″ is in sale since Tuesday, August 21, 2012. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Lawn Mowers\Lawn Mower Parts & Accessories”. The seller is “bakt4kids” and is located in Wauseon, Ohio. This item can be shipped worldwide.

• Brand: fits kohler
• MPN: Does Not Apply
• Model: K161
• Type of Mower: Riding Lawn Mower Tractor
• Lawn Mower Type: RIDING LAWN MOWER TRACTOR
• Power: 7 hp
• Item Condition: New
• Lawn+Mower+Type: Lawn+Mower+Parts+&+Accessories
• Make: for Kohler
• Type: Kohler engine rebuild